1
MCQ (Single Correct Answer)

AIPMT 2010 Prelims

In a set of reactions, ethylbenzene yielded a product D.

D would be
A
B
C
D

Explanation

2
MCQ (Single Correct Answer)

AIPMT 2010 Mains

Which of the following conformers for ethylene glycol is most stable?
A
B
C
D

Explanation

The conformation (d) is most stable because of intermolecular H-bonding.
3
MCQ (Single Correct Answer)

AIPMT 2010 Prelims

The reaction of toluene with Cl2 in presence of FeCl3 gives X and reaction in presence of light gives Y. Thus, X and Y are
A
X = Benzal chloride, Y = o-chlorotoluene
B
X = m-chloroluene, Y = p-chlorotoluene
C
X = o- and p-chlorotoluene, Y = Trichloromethyl benzene
D
X = Benzyl chloride, Y = m-chlorotoluene

Explanation

4
MCQ (Single Correct Answer)

AIPMT 2010 Prelims

Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by
A
oxidation
B
cracking
C
distillation under reduced pressure
D
hydrolysis

Explanation

On cracking or pyrolysis, the hydrocarbon with higher molecular mass gives a mixture of hydrocarbons having lower molecular masses. Hence, liquid hydrocarbons can be converted into a mixture of gaseous hydrocarbons. (Lower hydrocarbons exist in gaseous state while higher ones are in liquid state or solid state.)

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